Bottle-stopper



(No Model!) 2 Sheets-Sheet l.

A. E. BAIN.

BOTTLE STOPPBR. No. 450,993. Patented Apr. 21,1891.

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2 Sheets-Sheet 2.

Patented Apr. 21, 1891.

(No Model.)

Arent trios.

ALBERT E. DAIN, OF PITTSBURG, PENNSYLVANIA. p

BOTTLEfSTOPPER.

SPECIFICATION forming part of Letters Patent No. 450,993, dated April 21, 1891.

Application tiled August ll, 1890. Serial No. 361,741. (No model.)

To all whom t may concern.-

Beit known that I, ALBERT E. DAIN, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in-Bottle-Stoppers; and I do hereby declare the following to be a full, clear, and exact description of the inveution, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in which- Figure 1 indicates a vertical central section of an ordinary bottle provided with my improvided bottle-stopper. Fig. 2 is a longitudinal section of said stopper. Fig. 3, Sheet 2, is a vertical central section of an inkstand provided with my improved stopper. Fig. 4, Sheet 2, is a section of said stopper, showing air-valve on side thereof.

My invention relates to air-tight Stoppers, and is peculiarly adapted to inkstands of the automatic or fountain type; and it consists of a soft-rubber tube of irregular diameter, and adapted, when the stem or most contracted portion thereof is reversed or drawn through the globular or portion of the greatest diameter, to it into the neck of a bottle, said stem projecting into the bottle or vessel as shown in the drawings.

I will now more specifically describe my invention, reference being had to the accompanying drawings, forming part hereof, in which like letters indicate like parts wherever they occur.

In said drawings, A is a tube of irregular diameter, consisting of a neck or collar o, of greater cross-sectional thickness than the balance of said tube and provided with the beads a and a and adapted to fit into the neck of the bottle B or other vessel, as shown in Figs. 1 and 3. A stem b, which when reversed or drawn through the globular portion C of said tube, projects through the same into the vessel or bottle, as shown in Figs. 1 and 3. Said stem is formed with the grooves o and b, respectively external and internal, before the stem of said stopper is reversed; but after said reversal and when said stopper is applied to abottleinternal and external, respectively, as shown in Figs. 1 and 3, said groove Z2 being formed at the juncture of said stem, with the globular portion of said stopper when said stem is drawn through said globular part, is located at the bottom of the funnelshaped mouth of said stopper formed thereby, and is adapted to receive the lower beaded end of the mouth-piece D, formed of glass or other suitable material, which is removably secured in said funnel-shaped mouth to protect the same from injury by thrusting a pen therein when said stopperl is applied to an vink-bottle, as shown in Fig. 3, the lower end of said mouth piece being provided with openings d d for the purpose of permitting ink or other liquid to pass through said stem into said inouthpiece. Said groove Z7 is formed in said stem about midway its length, or, more accurately, at a point (when said stopper is applied to a bottle) slightly below the plane of the lower end of the collar or neck a, in order that the disk e, formed of hard' rubber or other suitable material, secured therein, may impinge against said lower end of said collar and prevent said stem drawing upward through the collar and globe.

gis an annular ring, formed of spring-steel, adapted to fit within said neck or collar and to aid in maintaining the same within the neck of the bottle.

71, is a valve adapted when pressed to admit air into said vessel or bottle, whereby the same may be filled through the mouth of the stem without disconnecting said stopper from the bottle or vessel to which it may beapplied.

E is a cap of hard rubber or other suitable. material, the upper end of which is provided with an orifice and the inside lower end with a thread to engage a corresponding thread upon the neck of the bottle and is adapted to fit over and protect the upper portion of said stopper, as shown in Fig. 3. Said capis also provided with aslot t', in which said valve projects, and of sufficient length to permit said valve some play therein at each successive depression of said stem.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s-

IOC

1. A bottle-stopper, substantially as de-l grooves, said stem being adapted when reversed through the globular portion of said stopper to project into the bottle or other vessel to which said stopper may be applied, substantially as and for the purpose herein set forth. a

2. The combination of a tube Consisting of a neck or collar, a globe, and a steln adapted when reversed to project into a bottle, a mouth-piece provided with :Ln opening at its lower end and adapted to tit into the upper l funnel-shaped portion of said tube, a disk 1 secured in n groove on said stem. an annular l 

